"Mood" in a novel is typically created through the setting. Which of the following pieces of text BEST supports the overal mood of "building tensions" in the first two chapters?

a
Well, he’s a pretty nice fella. Gets pretty mad sometimes, but he’s pretty nice.
b
"Strong as a bull," he repeated. George scowled at him, and Lennie dropped his head in shame at having forgotten.
c
Don't never speak to him. If he comes in here you move clear to the other side of the room. Will you do that, Lennie?"
d
In front of the low horizontal limb of a giant sycamore there is an ash pile made by many fires; the limb is worn smooth by men who have sat on it.

d